Targeting teachers while shielding cops? The politics of punishing enemies and rewarding friends in American state collective bargaining reform agendas

Source: Magic M. Wade, Journal of Labor and Society, Vol. 21 no. 2, June 2018
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From the abstract:
Teachers unions are notorious figures in state politics, asserting influence over elections and education policy with their large memberships and well‐funded PACs. Nonetheless, during the Great Recession Republican‐controlled state governments repeatedly clashed with teachers unions over their members’ compensation and collective bargaining (CB) rights. Conversely, public safety officers were less frequently targeted—and in some cases explicitly shielded—from CB conflicts. Is this because teachers support Democrats, while cops support Republicans? I evaluate this proposition considering state reform patterns and union partisan campaign donations.